Wheelock MZC-144 Installation Instructions Manual

15, P83259 H Sheet 15 of 26 9. MODEL MZC-RM 3 ZONE RELAY MODULE : The MZC-RM is a plug-in relay module designed to allow relay control through the MZC-144. The MZC-RM provides a fixed zone group consisting of three relay outputs, two Form C and one selectable (normally open or normally closed) …

2, Wheelock MZC-144 P83259 H Sheet 2 of 26 Table 1: Zone Groups Group Zones Qty. of MZEM-3 1 1, 2, 3 0 2 4, 5, 6 1 3 7, 8, 9 2 4 10, 11, 12 3 Group one (1) of every MZC-144 will always be audio. Groups 2, 3, 4 of each MZC-144 can be audio or a relay (contact closure). For audio opera…

3, P83259 H Sheet 3 of 26 3. AUDIO CONFIGURATION DESCRIPTIONS: The amplifier type (central or zone) is configured for each zone group as described in Table 3. Table 3: Amplifier Type Group Configuration Function Group Function Choices - Per Group Amplifier Type 1. Centra…

5, P83259 H Sheet 5 of 26 4. APPLICATION DIAGRAMS : The following application diagrams show the seven basic system configurations of the MZC-144 and its companion MZEM-3. All of these configurations are possible with the appropriate configured switch selections. Figures 2, 3, 4, …

8, P83259 H Sheet 8 of 26 Figure 5: Two Central Amplifiers, one for paging and one for background music. (One Way and/or Optional Talk-Back Paging) In this application, two central amplifiers are used, one for paging and one for background music. The system uses speake…